64134825 has 12 divisors (see below), whose sum is σ = 106036368. Its totient is φ = 34205200.

The previous prime is 64134821. The next prime is 64134853. The reversal of 64134825 is 52843146.

It is not a de Polignac number, because 64134825 - 2² = 64134821 is a prime.

It is a super-2 number, since 2×64134825² = 8226551555561250, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64134821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 427491 + ... + 427640.

It is an arithmetic number, because the mean of its divisors is an integer number (8836364).

Almost surely, 2^64134825 is an apocalyptic number.

It is an amenable number.

64134825 is a deficient number, since it is larger than the sum of its proper divisors (41901543).

64134825 is a wasteful number, since it uses less digits than its factorization.

64134825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855144 (or 855139 counting only the distinct ones).

The product of its digits is 23040, while the sum is 33.

The square root of 64134825 is about 8008.4221292337. The cubic root of 64134825 is about 400.2806884056.

The spelling of 64134825 in words is "sixty-four million, one hundred thirty-four thousand, eight hundred twenty-five".